Question

10+{250:5+15:3*[10-(20:4-2)*3]}*2

Answer 1

$10+250\div \:5+15\div \:3\left[10-\left(20\div \:4-2\right)\cdot \:3\right]\cdot \:2 =$

$\left[10-\left(20\div \:4-2\right)\cdot \:3\right] = 10-\left(20\div \:4-2\right)\cdot \:3 =10-3\cdot \:3 =10-9 =1$

$10+250\div \:5+15\div \:3\cdot \:1\cdot \:2 =$

$10+50+15\div \:3\cdot \:1\cdot \:2 =$

$10+50+10 =$

$60 + 10 =70$